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Full text of "IMPROVEMENT IN ROTARY STOVES BY ADDING AN OVEN THERETO - United States Patent 282"

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No. 282. 



R. D. GRANGER. 
Cooking Stove. 



Patented July 17, 1837. 



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N. PETERS, Photo-LHhoaraplvor, Washington. D. C 



United States Patent Office* 



RENSSELAER D. GRANGER, OF TROY, NE W YORK. 
IMPROVEMENT IN ROTARY STOVES BY ADDING AN OVEN THERETO. 



Specification forming part of Letters Patent No. 282, dated July 17, 1837. 



To all 'whom it may concern : 

Be it known that I, Rensselaer D. Gran- 
gee, of the city of Troy, in the county of Rens- 
selaer and State of New York, have invented 
an improvement in what are usually denomi- 
nated " rotary stoves," by the addition of an 
oven thereto, which does not interfere with the 
other ovens or means of cooking, or require 
any additional fuel for heating it, and which 
oven may be added to stoves of other descrip- 
tions ; and I do hereby declare that the follow- 
. ing is a full and exact description. thereof. 

The drawing represents the ordinary rotary 
stove with my improvement thereon. 

The top or revolving plate, A, has a tube or 
collar passing through a hole in its center to 
receive the pipe B, which tube or collar is 
firmly attached to the lower plate, but is open 
on .one or more sides within the chamber, be- 
tween the two plates, to admit the heated air 
to pass into it and into the pipe B, which fits 
onto it. The top A revolves freely round the 
tube or collar. A second pipe, C, rises from 
the diving-flue at the back of the stove in the 
ordinary way, and both these pipes enter the 
bottom plate of an oven, 13, which I usually 
make of sheet-iron. This oven is composed of 
double plates at its top, bottom, and ends, 
forming flues which surround it, excepting at 
the sides, where the doors aresituated. When 
this oven is to be used for baking, a valve, E, 
in the pipe B is left open. The principal part 
of the heated air from the fire will then pass up 
this.pipe and through the flues above and be- 
low the oven, escaping eventually through a 
pipe from E into a chimney. . Sometimes I 
put a valve into the pipe and dampers or 
valves into the fluesabove and below the oven ; 
but in general I omit these, having found the 
valve in the pipe B sufficient, and therefore to 



be preferred on account of its simplicity. The 
oven D is elevated by means of the pipes B 
and G to such a height as to allow the boilers 
to pass under it, and as the tube or collar 
leading to the pipe B might otherwise inter- 
fere with the use of a boiler of large size with- 
out increasing the diameter of the top, I make 
a swell, G, in the periphery of the rotary top 
to admit such a boiler. 

Having thus fully described my said im- 
provement and shown what I believe to be the 
most convenient mode of carrying the same 
into operation, I wish it to be understood that 
I do not intend to confine myself to the pre- 
cise manner of constructing the same herein 
presented. There may, for example, be two 
diving-flues, each furnished with a pipe like 
that marked 0, and leading into the flue of 
an oven constructed like D, by which a like 
end would be attained, but in a manner less 
convenient than that above described. 
What I claim as my improvement is — 
1. The conveying the heated air from the 
fuel through two or more pipes into an oven 
elevated above the main body of a rotary 
stove, allowing the boilers to pass under it, 
and operating substantially upon the principle 
herein set forth. 

« 2. The formation of the swell or curve ex- 
tending bejond the periphery of the rotary 
top, for the purpose of gtving room to a large 
boiler, either when a center tube or' collar is 
employed or when it is desired to obtain room 
in the ordinary rotary stove in which my oven 
is not used. 

RENSSELAER D. GRANGER. 

Witnesses: 

Thos. P. Jones, 
Leti Rice.